The roles of nano-SiO2 particles on the tribological behavior of short carbon fiber reinforced PEEK

Tribological behaviour of unidirectional carbon fibre-reinforced epoxy composites

“…The mechanical properties such as hardness, tensile strength, tensile modulus, ductility are improved as the fibers reinforcement content increase in the polymeric matrix materials [6][7][8][9][10][11]. Over the last two decades, the investigation on wear and friction characteristics of many types of polymer composites were reported, such as carbon fibre reinforced polyamide polymer composite [12,13,14], carbon fibre epoxy composite [15,16,17], carbon fibre/glass epoxy composite [18][19][20][21][22][23] and fibre length and particle sizes on epoxy composite [24,25] and nano-size effect [26,27]. Also, influence of parameters such as fibre content, fibre angle, type of resin/fibre, process parametres and, especially fibre orientation on the wear rate is very important [5,[28][29][30].…”

Effect of nanosilica additive particles on both friction and wear performance of mild steel/CuSn/SnBi multimaterial system

“…The average values of the friction coefficients for all the studied specimens range from 0.04 to 0.1. It can be concluded that the friction coefficient of the specimens with SiO 2 nanoparticles is lower than that one of the specimens without nanoparticles [28][29][30][31]. The addition of nanoparticles is better suited to create a positive synergetic effect in terms of tribological performance.…”

“…Adhesive wear occurs at the asperity contacts at the interface and these contacts are sheared by sliding. This process may result in a detachment of fragments from one surface and an attachment to the other surface [28][29][30][31]. Note that no clear correlation is found between friction and wear.…”

“…These particles penetrate the surfaces and displace the elongated chips of the materials. However, the fine particles of SiO 2 can improve the wear resistance by hindering the deformation of the material during the sliding process [30,31].…”

“…Some researchers [26][27][28][29][30][31] have summarized the role of addition of SiO 2 nanoparticles on the tribological behaviour of friction materials (FMs). Their results indicate that the SiO 2 nanoparticles were believed to be the ideal solution that exhibits remarkable wear resisting and friction reducing behaviours.…”